{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "0ac3e9ec",
   "metadata": {},
   "source": [
    "# 上周回顾\n",
    "\n",
    "> 1. while循环：while True-->无限循环\n",
    ">> 1. 指定次数，while True 可以实现for循环的指定次数，增加一个count计数器即可。\n",
    ">> 2. while True 一般与 用户输入 一起使用，让用户可以重复输入，知道某些条件成立结束输入（购物车）\n",
    "> 2. 购物车实践（平时作业）\n",
    "\n",
    "# 本周内容\n",
    "> 1. 元组\n",
    "> 2. 集合\n",
    "> 3. 字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2aa74247",
   "metadata": {},
   "source": [
    "# 1.元组（tuple）\n",
    "\n",
    "> 1. 元组的基本内容（形态、定义）\n",
    "> 2. 元组的性质\n",
    ">> 1. 有序性（indexing，sliceing）\n",
    ">> 2. <font color=\"red\">**不可变性**</font>,元组没有：增、删、改\n",
    "> 3. 元组的一般方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "25417ea5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(180001, 180002, 180003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网三_学号 = (180001,180002,180003)\n",
    "print(网三_学号,type(网三_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "ae9f85ff",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(190001, 190002, 190003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 = 190001,190002,190003\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "3980bdf7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "190001"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "804ce22c",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(190002, 190003)"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "0311d4d8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=6, tm_sec=6, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "13caf691",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'> 1947021674496\n",
      "[1, 2, 3, 4] 1947022569792\n"
     ]
    }
   ],
   "source": [
    "tuple_test = ([1,2,3,4],[3,4,5,6])\n",
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "653cdfca",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "e89bd4b7",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4, 100], [3, 4, 5, 6]) <class 'tuple'> 1947021674496\n",
      "[1, 2, 3, 4, 100] 1947022569792\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "c464324b",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 一般情况下，元组里面存放的是 常量（不可变），何为常量：数字，字符串\n",
    "#                       不存放变量 如，列表，字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "11d2f318",
   "metadata": {},
   "source": [
    "# 2.集合（sets)\n",
    "> 1. 集合的基本概念\n",
    ">> 1. 性质： 没有重复项\n",
    ">> 2. 性质： 无序性\n",
    "> 2. 集合的一般方法\n",
    ">> 1. 集合的运算：& ， |\n",
    ">> 2. 集合的一般方法：intersection，"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "d0fa768e",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n",
      "{'banana', 'orange', 'apple', 'pear'}\n"
     ]
    }
   ],
   "source": [
    "basket_lists = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n",
    "basket_sets = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}\n",
    "print(basket_lists)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "49761dd2",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 = {1801,1802,1803,1809,1811,1812}\n",
    "电竞社 = {1808,1822,1802,1801,1888,1899}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d7b9a47b",
   "metadata": {},
   "source": [
    "* 集合的与运算，交集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "0e7c5335",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "58ca57da",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.intersection(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d55b48d8",
   "metadata": {},
   "source": [
    "* 集合的或运算，并集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "d7b54981",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "c234a10d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "10"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社 | 电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "426a3063",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.union(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ad173264",
   "metadata": {},
   "source": [
    "# 3. 字典（dict)\n",
    "\n",
    "> 1. 字典的基本概念\n",
    ">> 1. 字典性质：\n",
    ">>> 2.keys 是不可变的：就像列表、·字符串等有序的数据结构他的index不可变量是一样的\n",
    ">>>3. keys是为唯一的\n",
    ">> 2. 字典的形态\n",
    "> 2. 字典的一般方法\n",
    ">> 1. 字典的创建\n",
    ">> 2. 字典的函数和方法\n",
    ">>> 1. 增加\n",
    ">>> 2. 删除\n",
    ">>> 3. 修改"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "641d422f",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "b2a2f384",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'Jack', 1800003: 'Marry', 1800004: '周杰伦'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "22e116c4",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 因为学号是唯一的，可以作为字典的key"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "093113bc",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'Jack', 1800003: 'Marry', 1800004: '周杰伦', 1800005: 'Jack'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "网新三班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}\n",
    "print(网新三班,type(网新三班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "85b583f2",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'周杰伦'"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 字典的取值：通过keys 进行字典的取值，unlike 列表、元组和字符串通过index取值\n",
    "网新三班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "id": "92110ff4",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 = {\n",
    "    1800001:[\"李一峰\",\"广州\",\"男\",19,\"聊天记录\",\"朋友圈\"],\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "6b54a221",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['李一峰', '广州', '男', 19, '聊天记录', '朋友圈']"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新三班[1800001]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "dfe6f8a6",
   "metadata": {},
   "source": [
    "# 3.2 字典的一般方法"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e7f9463c",
   "metadata": {},
   "source": [
    "* 1. 按照字典的形式直接创建(key:value)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "3587e5fc",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\"\n",
    "}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a70b5c1b",
   "metadata": {},
   "source": [
    "* 2. 使用dict()方法创建字典"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "id": "a1a9fd26",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新四班 = dict(\n",
    "    stu1800001=\"李一峰\",\n",
    "    stu1800002=\"Jack\",\n",
    "    stu1800003=\"Marry\",\n",
    "    stu1800004=\"周杰伦\",\n",
    "\n",
    ")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "be1d37cf",
   "metadata": {},
   "source": [
    "* 3. 使用字典增加的方式创建字典"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "0c69a2e6",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用dict()方法创建字典\n",
    "网新四班 = dict(\n",
    "    stu1800001=\"李一峰\",\n",
    "    stu1800002=\"Jack\",\n",
    "    stu1800003=\"Marry\",\n",
    "    stu1800004=\"周杰伦\",\n",
    "\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "dcb106b9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 45,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "id": "5e23f23d",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用字典增加的方式创建字典 : dict[key] = value\n",
    "\n",
    "网新一班 = {}\n",
    "网新一班[\"stu1800001\"] = '李一峰'\n",
    "网新一班[\"stu1800002\"] = 'Jack'\n",
    "网新一班[\"stu1800003\"] = 'Marry'\n",
    "网新一班[\"stu1800004\"] = '周杰伦'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "fe50e773",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 47,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "e14022d6",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班_values = ['李一峰','Jack','Marry','周杰伦']\n",
    "网新一班 = {}\n",
    "for i in range(4):\n",
    "    网新一班[网新一班_keys[i]] = 网新一班_values[i]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "4bac8430",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "71605ccd",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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